Crash on attempt to clear(NullifyInstance) of duplicated Hierachial Instanced Static Mesh

Tools - May 31, 2019

When creating an C++ Actor with a Hierarchical Instanced Static mesh. when duplicating such an actor with mesh instances, the instances are not visible on the level. In this state, calling HISM comp ...

Failure packaging for Android with Configure for deployment to Daydream enabled

UE - Platform - Mobile - Jan 5, 2017

Found on: 4.15 Binary CL-3247232 Unable to package for android when Configure for deployment to Daydream is selected. (Packaging without it enabled succeeds even with the same other settings, but c ...

Classes in TargetDenyList modules are still referenced from Components on BlueprintGeneratedClasses and cause runtime warnings

UE - Foundation - Feb 25, 2024

Other than the presence of the error and the performance cost of looking for a package on disk that does not exist, there are no behavioral problems. When running with legacy (non-iostore) pakfiles ...

Cached component instance data transform did not match! Warnings in Content Examples

Docs - Samples - Oct 27, 2016

Lighting is unbuilt in all levels in Content Examples. Multiple warnings appear in the log "Discarding cached lighting data which will cause lighting to be unbuilt" LogStaticMesh:Warning: Cached co ...

Passthrough in ARHandheld Template fails to work on Android

UE - Platform - XR - Sep 11, 2024

After using the Begin Scan, the application does not show anything with the camera, though it should be noted that you can still find, select planes and then place the model on it. For now the bug w ...

[CrashReport] FMacWindow::ApplySizeAndModeChanges | SWindow::ReshapeWindow()

UE - Platform - Apple - Dec 1, 2017

This is an infrequent Mac crash in 4.18. Users have not provided any descriptions of their actions when the crash occurred. The callstack is similar to both [Link Removed] and [Link Removed] Call ...

[CRASH]SIGSEGV: invalid attempt to access memory at address 0x0

Tools - Jan 7, 2015

Callstack: <CALLSTACK START> FTaskThread::ProcessTasksUntilQuit(int) Address = 0x1091943e5 (filename not found) [in UE4Editor-Core.dylib] RenderingThreadMain(FEvent*) Address = 0x10de37e4b (filena ...

Constant Crashes on OS X 10.10.1

UE - Platform - Apple - Dec 15, 2014

User (Omri) on Mac running OS X 10.10.1. on MacBook Pro (17-inch, Early 2009 Experiencing Crash. Cannot reproduce. Crash Reporter: N/A Callstack: MachineId:1E07B9CE2F4554A7C3F421A9DD97AFB5 EpicAc ...

Using both an Atmospheric and Exponential Height Fog will cause an issue rendering Translucency-based Materials

UE - Graphics Features - Jul 10, 2014

Using both an Atmospheric and Exponential Height Fog will cause an issue rendering Translucency-based Materials.  (See Screenshots below) IMPACT:                   Cannot use both Atmospheric Fog ...

Cannot hide most Blueprint categories from the Class Settings

UE - Gameplay - Blueprint - Apr 29, 2015

Cannot hide most Blueprint categories from the Class Settings of a bp. x = Cannot hide Actor - Hid-able Add Component - x Add Event - x AI - x Animation - Hid-able Audio - Hid-able Canvas Render T ...